21000251972

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9036253}}^1$

素因数の和:9036347

約数の個数: 24

約数和(自身を含む): 42506538816

約数和(自身を除く): 21506286844

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 9036253, 18072506, 36145012, 63253771, 126507542, 253015084, 750008999, 1500017998, 3000035996, 5250062993, 10500125986, 21000251972]

約数ペア:

[(1, 21000251972), (2, 10500125986), (4, 5250062993), (7, 3000035996), (14, 1500017998), (28, 750008999), (83, 253015084), (166, 126507542), (332, 63253771), (581, 36145012), (1162, 18072506), (2324, 9036253)]